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move code to src/test

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* so that it compiles and tests pass
* fix some additional snip references in getting started
This commit is contained in:
Patrik Nordwall 2017-05-11 15:11:25 +02:00
parent 413df8e0f4
commit 59f53e1a22
289 changed files with 45 additions and 45 deletions
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100
akka-docs/src/main/java/jdocs/cluster/StatsSampleClient.java
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@ -1,100 +0,0 @@
package jdocs.cluster;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import jdocs.cluster.StatsMessages.JobFailed;
import jdocs.cluster.StatsMessages.StatsJob;
import jdocs.cluster.StatsMessages.StatsResult;
import java.util.concurrent.ThreadLocalRandom;
import scala.concurrent.duration.Duration;
import scala.concurrent.duration.FiniteDuration;
import akka.actor.ActorSelection;
import akka.actor.Address;
import akka.actor.Cancellable;
import akka.actor.AbstractActor;
import akka.cluster.Cluster;
import akka.cluster.ClusterEvent.UnreachableMember;
import akka.cluster.ClusterEvent.ReachableMember;
import akka.cluster.ClusterEvent.CurrentClusterState;
import akka.cluster.ClusterEvent.MemberEvent;
import akka.cluster.ClusterEvent.MemberUp;
import akka.cluster.ClusterEvent.ReachabilityEvent;
import akka.cluster.Member;
import akka.cluster.MemberStatus;
public class StatsSampleClient extends AbstractActor {
final String servicePath;
final Cancellable tickTask;
final Set<Address> nodes = new HashSet<Address>();
Cluster cluster = Cluster.get(getContext().getSystem());
public StatsSampleClient(String servicePath) {
this.servicePath = servicePath;
FiniteDuration interval = Duration.create(2, TimeUnit.SECONDS);
tickTask = getContext()
.getSystem()
.scheduler()
.schedule(interval, interval, getSelf(), "tick",
getContext().dispatcher(), null);
}
//subscribe to cluster changes, MemberEvent
@Override
public void preStart() {
cluster.subscribe(getSelf(), MemberEvent.class, ReachabilityEvent.class);
}
//re-subscribe when restart
@Override
public void postStop() {
cluster.unsubscribe(getSelf());
tickTask.cancel();
}
@Override
public Receive createReceive() {
return receiveBuilder()
.matchEquals("tick", x -> !nodes.isEmpty(), x -> {
// just pick any one
List<Address> nodesList = new ArrayList<Address>(nodes);
Address address = nodesList.get(ThreadLocalRandom.current().nextInt(
nodesList.size()));
ActorSelection service = getContext().actorSelection(address + servicePath);
service.tell(new StatsJob("this is the text that will be analyzed"),
getSelf());
})
.match(StatsResult.class, System.out::println)
.match(JobFailed.class, System.out::println)
.match(CurrentClusterState.class, state -> {
nodes.clear();
for (Member member : state.getMembers()) {
if (member.hasRole("compute") && member.status().equals(MemberStatus.up())) {
nodes.add(member.address());
}
}
})
.match(MemberUp.class, mUp -> {
if (mUp.member().hasRole("compute"))
nodes.add(mUp.member().address());
})
.match(MemberEvent.class, event -> {
nodes.remove(event.member().address());
})
.match(UnreachableMember.class, unreachable -> {
nodes.remove(unreachable.member().address());
})
.match(ReachableMember.class, reachable -> {
if (reachable.member().hasRole("compute"))
nodes.add(reachable.member().address());
})
.build();
}
}